Wall tie



April 14, 1925. 1,533,324

J. J. MACK WALL TIE Filed Dec'. 28, 1922 ,/e 6 5\ FIGURE flE'LEE'i 'Flsuuaflg Patented Apr. 14, 1925..

UNITED STATES JOHN J. MACK, 9F SALEM, MASSACHUSETTS.

WALL TIE.

Application filed December 28, 1922. Serial No. 609, l76.

' To all whom it may concern:

. Be it known that I, JOHN J. MACK, a citizenof the United States, residing at Salem, V in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in'VVall Ties, of which the following isa specification.

A serious objection to the brick wall type of building construction is the fact that a brick wall of the usual thickness will wet through in a hard driving rain of long duration. This fact has long been recognized and it has been customary. therefore, to construct such a wall with a vertical air space in it. That is, the wall is double, consisting of inner and outer wall sections separated by an air space. It is necessary to bond or tie these two sections of the wall together at intervals, and this has usually been done heretofore by placing bricks at intervals lengthwise across the air space, the opposite ends of such bricks being anchored in the two walls. These brick ties have the advantage of permanency and of being economical to use, but they have the disadvantage of conducting water from i the outer to the inner wall, due bot-h to capillarity and also dueto the fact that they present broad surfaces across which the water can flow fromone wall to the other. Aifurther objection to the brick tie is that mortar which drops down between the in ner and outer sections of the wall during the process of erecting it, lodges 0n the bricks and thus forms an additional porous body which conducts water from one Wall to the other.

In order to obviate the necessity of using a brick tie, a great many forms of metal wall ties have been devised. All of them, however, of which I have been able to learn,

' are open to the objection that they corrode or rust out after relatively few years so that they become absolutely worthless. Most of these prior constructions, also, have the same objection as the brick tie so far as collecting mortar is concerned, and they are open to the further objection that water running down the inner face ofthe outer wall, will collect on them and run across them to the inside wall, where it will ultiinately soak through the bricks in the latter wall. The result is that notwithstanding these prior attempts to devise a satisfactory metal Wall tie, the brick tie is still an in drawin s and the novel features will be particularly pointed out in the appended claims.

Figure 1 is a plan view of a wall tie enibodying the present invention;

Fig. 2 is a side elevation of the device shown in' Fig. 1;

F ig. 3 is an end view of the device shown in Figs. 1 and 2;

Fig. 4 is a cross sectional view on the line A-A, Fig. 1; and

Fig. 5 is a cross sectional view on the line 13-13, Fig. 1.

The wall tie shown comprises two flat end portions 2 and 3, designed to be anchored, respectively, in the inner and outer sections of a wall of the character described above 'with the plate in a horizontal-position. In

order to facilitate the secure anchoring of the plate in the wall, the upper and lower surfaces of the end portions are corrugated, as clearly shown, and each is provided with a central perforation 4.. Preferably, also, the end portions are wedge-shaped or tapered toward each other, as clearly illustrated, so that when they have once been embedded in the wall sections they will effectually resist any tendency of said sections to spread apart.

The two end portions are connected by an intermediate section which comprises a drip collar 5 and shanks 6 and 7 that connect the drip collar with the respective end portions 2 and 3. The drip collar or enlargement 5 preferably is about square in outline and has bevelled sides which meet to form a thin edge at the perimeter of the collar. The shanks 6 and 7, as illustrated, are tapered from the collar toward the ends 2 and 3 and they are also tapered vertically. That is, each shank has a thin or comparatively sharp upper edge 8 and it gradually increases in cross'sec'tional wit th below this collar 5 split and body of mortar that falls on the tie from above after the tie has once been secured in its operative position and thus prevent the building up or a body of niortar'on the tie with the consequent disadvantages above described. hen this tie is in its proper position in a wall the en l'argement orjdrip collar 5 efiectually prevents water from travelling across the tie fronione. wallto-the other. Any water that runs. down the. inner face of the outer wall and strikes the tie can run across the tie until it reaches the part 5; it cannot t -avel any furtheryhowever, toward the inner wall but will simplyrun to the lowest point of the collar and drop off. In or or to resist rusting of the tie; or any corrosion or galvanio action which might destroy it, I prefer to make the tie-oi cast iron since I have found that this material; when used in a locationof this character will last as long as a brick wall. The outer suri ace'rusts but therusting does not progress at it does in other metals. 7

By using a tie of-thisconstruction in the walls,- any possibility oi water working across the air space from one wall to the other is absolutely prevented. Consequent- 1y; plaster. can be. applied directly to the inside. surface of the inner wall and the necessity oi using furring strips is avoided. There 1s also an advantage in having the drip occur at a fi-Xed point between the walls since it perniits niore accurate control of the drip and the collection and disposal of it at the bottom of the wall; 7

It will be appreciated that the present in vention provides a wall'tie which is as permanent as the wall itselflcan be economically manufactured, is very convenient to use, and in fact has all the advantages of the brick tie with none of its disadvantages. l have described the wall tie above as used in a brick wall, but it will be appreciated that this tie can be used to advantage in any hollow wall o f'inasonry construction. 7

Having thus described my invention, what I desire to claim as new is:

1. A cast iron wall tie havingfiat opposite end portions constructed to be anchored, respectively, in the inner and outer sections of a wall, the upper and lower surfaces or said-end portions being corrugated said end portions beinig tapered in width toward each 7 other, and an intermediate section integral with said end portions and comprising a centrally disposed drip collar and shanks connecting said collar with said end portions, said shanks being tapered both vertically and longitudinally.

2. A cast iron wall tie having opposite end portions constructed to be anchored, respectively, in the inner and outer sections of a brick wall, and an intermediate portion integral with said end portions and compris ing a centrally disposed drip collar and shanks connecting said collar with said end portions, each or" said shanks having a thin upper edge extending longitudinally thereof I and beingtapered in vertical cross section, whereby they will split falling masses Ofli mortar and prevent the accumulation of. such niasses on them.

JOHN J. MACK. 

